Package Exports

react-native-localize
react-native-localize/dist/commonjs/index.js
react-native-localize/dist/module/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (react-native-localize) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

🌍 react-native-localize

A toolbox for your React Native app localization.

Funding

This library helped you? Consider sponsoring!

This module is provided as is, I work on it in my free time.

If your company uses it in a production app, consider sponsoring this project 💰. You also can contact me for premium enterprise support, help with issues, prioritize bugfixes, feature requests, etc.

Support

package name	version	react-native version
react-native-localize	3.0.0+	0.70.0+
react-native-localize	2.0.0+	0.60.0+

Setup

$ npm install --save react-native-localize
# --- or ---
$ yarn add react-native-localize

Don't forget to run pod install after that !

Web support

This package supports react-native-web. Follow their official guide to configure webpack.

Windows Support

Because this package targets React Native 0.70.0+, you won't need to link it manually. For more information about autolinking and manual linking, follow the official guide

Basic usage example

import { getCurrencies, getLocales } from "react-native-localize";

console.log(getLocales());
console.log(getCurrencies());

API

getLocales()

Returns the user preferred locales, in order.

Method type

type getLocales = () => Array<{
  languageCode: string;
  scriptCode?: string;
  countryCode: string;
  languageTag: string;
  isRTL: boolean;
}>;

Usage example

import { getLocales } from "react-native-localize";

console.log(getLocales());
/* -> [
  { countryCode: "GB", languageTag: "en-GB", languageCode: "en", isRTL: false },
  { countryCode: "US", languageTag: "en-US", languageCode: "en", isRTL: false },
  { countryCode: "FR", languageTag: "fr-FR", languageCode: "fr", isRTL: false },
] */

getNumberFormatSettings()

Returns number formatting settings.

Method type

type getNumberFormatSettings = () => {
  decimalSeparator: string;
  groupingSeparator: string;
};

Usage example

import { getNumberFormatSettings } from "react-native-localize";

console.log(getNumberFormatSettings());
/* -> {
  decimalSeparator: ".",
  groupingSeparator: ",",
} */

getCurrencies()

Returns the user preferred currency codes, in order.

Method type

type getCurrencies = () => string[];

Usage example

import { getCurrencies } from "react-native-localize";

console.log(getCurrencies());
// -> ["EUR", "GBP", "USD"]

getCountry()

Returns the user current country code (based on its device locale, not on its position).

Method type

type getCountry = () => string;

Usage example

import { getCountry } from "react-native-localize";

console.log(getCountry());
// -> "FR"

Note

Devices using Latin American regional settings will return "UN" instead of "419", as the latter is not a standard country code.

getCalendar()

Returns the user preferred calendar format.

Method type

type getCalendar = () =>
  | "gregorian"
  | "buddhist"
  | "coptic"
  | "ethiopic"
  | "ethiopic-amete-alem"
  | "hebrew"
  | "indian"
  | "islamic"
  | "islamic-umm-al-qura"
  | "islamic-civil"
  | "islamic-tabular"
  | "iso8601"
  | "japanese"
  | "persian";

Usage example

import { getCalendar } from "react-native-localize";

console.log(getCalendar());
// -> "gregorian"

getTemperatureUnit()

Returns the user preferred temperature unit.

Method type

type getTemperatureUnit = () => "celsius" | "fahrenheit";

Usage example

import { getTemperatureUnit } from "react-native-localize";

console.log(getTemperatureUnit());
// -> "celsius"

getTimeZone()

Returns the user preferred timezone (based on its device settings, not on its position).

Method type

type getTimeZone = () => string;

Usage example

import { getTimeZone } from "react-native-localize";

console.log(getTimeZone());
// -> "Europe/Paris"

uses24HourClock()

Returns true if the user prefers 24h clock format, false if they prefer 12h clock format.

Method type

type uses24HourClock = () => boolean;

Usage example

import { uses24HourClock } from "react-native-localize";

console.log(uses24HourClock());
// -> true

usesMetricSystem()

Returns true if the user prefers metric measure system, false if they prefer imperial.

Method type

type usesMetricSystem = () => boolean;

Usage example

import { usesMetricSystem } from "react-native-localize";

console.log(usesMetricSystem());
// -> true

usesAutoDateAndTime()

Tells if the automatic date & time setting is enabled on the phone. Android only

Method type

type usesAutoDateAndTime = () => boolean | undefined;

Usage example

import { usesAutoDateAndTime } from "react-native-localize";

console.log(usesAutoDateAndTime()); // true or false

usesAutoTimeZone()

Tells if the automatic time zone setting is enabled on the phone. Android only

Method type

type usesAutoTimeZone = () => boolean | undefined;

Usage example

import { usesAutoTimeZone } from "react-native-localize";

console.log(usesAutoTimeZone());

findBestAvailableLanguage()

Returns the best language tag possible and its reading direction (⚠️ it respects the user preferred languages list order, see explanations). Useful to pick the best translation available.

Method type

type findBestAvailableLanguage = (
  languageTags: string[],
) => { languageTag: string; isRTL: boolean } | void;

Usage example

import { findBestAvailableLanguage } from "react-native-localize";

console.log(findBestAvailableLanguage(["en-US", "en", "fr"]));
// -> { languageTag: "en-US", isRTL: false }

Examples with @formatjs/intl

Browse the files in the /example directory.

How to update supported localizations (iOS)

You can add / remove supported localizations in your Xcode project infos:

How to test your code

Because it's a native module, you need to mock this package.
The package provides a default mock you may use in your __mocks__/react-native-localize.js or jest.setup.js.

import localizeMock from "react-native-localize/mock";

jest.mock("react-native-localize", () => localizeMock);